1,721,092 research outputs found
Digestible fibre to ADF ratio and protein concentration in diets for early-weaned rabbits
No full textTo evaluate the effects of three ratios of digestible fibre (DF = hemicelluloses and pectins) to ADF (1.1, 1.3 and 1.5) and two levels of crude protein (CP, 16% and 17%) on digestive efficiency, growth performance, health status, and meat quality, from early-weaning (26 d of age) to slaughter (74 d) 246 rabbits were given ad libitum access to six diets according to a 3x2 factorial arrangement. Increasing DF/ADF linearly increased DM, fibre fraction and energy (59.9 vs. 62.3 vs. 65.9%, P<0.01) digestibility and daily weight gain (42.4 vs. 43.2 vs. 45.2 g/d; P=0.02) and improved feed conversion (P<0.01), without affecting slaughter results, carcass and meat quality. Total caecal VFA concentration increased (51.3 vs. 66.9 and 66.0 mmol/l; P<0.01) as DF/ADF raised from 1.1 to 1.3 and 1.5. Increasing dietary protein improved DM and nutrient digestibility and feed conversion (P<0.01), as well as slaughter dressing percentage (61.2 vs 61.8%, P=0.03). Dietary protein concentration did not modify caecal content characteristics or carcass and meat quality. A higher mortality (P=0.05) was measured in rabbits fed diets at 1.1 DF/ADF (27.1%) in comparison with rabbits fed diets at 1.3 (14.3%) and 1.5 (17.1%). However, feeding the highest DF/ADF diets, mortality raised up to 23.9% with the 16% CP diet, while was only 11.4% with the 17% CP diet
Como la densidad y el tipo de suelo influyen en los rendimientos productivos y el bienestar de conejos de engorde en jaulas colectivas
No full textThis study aimed to evaluate the effect of increasing stocking density (14, 16, 18 and 20 rabbits/m2) and type of floor (wire net vs slatted floor) on productive performance, animal reactivity, carcass and meat quality of 380 rabbits weaned at 28 d of age (live weight: 640 ± 48 g) and put in collective cages by 9 or 10. Increasing stocking density at 18 and, specially, 20 animals/m2 significantly reduceddaily weight gain, feed intake and final live weight. The effect of stocking density on slaughter traits mainly depended on the differences in final live weight among groups, while carcass and meat quality was not affected. During the tonic immobility test, rabbits reared at the highest density required more attempts to induce tonic immobility and remained immobile for a longer time (P<0.01). During the
open-field test, the same animals moved less (P=0.02) and run more (P<0.01). Keeping the rabbits on a slat floor increased daily weight gain (P=0.07), final live weight (P=0.07) and feed intake (P<0.01) in comparison with wire net floor, while did not modify slaughter trait and carcass and meat quality. The attempts to induce immobility were less (P<0.01) and biting during the test the open-field higher in rabbits kept on slat floor. In conclusion, increasing stocking density above 18 rabbits/m2 impaired
productive performance, especially in the last two weeks of growing as a consequence of a reduced feed intake, and modified animal reactivity towards man or a new environment. The type of floor showed a weak effect on productive performance and reactivity, whereas a slatted floor was likely
more comfortable for the heavier animals in the last weeks of fattening period
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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